395497390061 has 2 divisors, whose sum is σ = 395497390062. Its totient is φ = 395497390060.

The previous prime is 395497390037. The next prime is 395497390097. The reversal of 395497390061 is 160093794593.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 379597693225 + 15899696836 = 616115^2 + 126094^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-395497390061 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 395497389979 and 395497390006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (395497399061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197748695030 + 197748695031.

It is an arithmetic number, because the mean of its divisors is an integer number (197748695031).

Almost surely, 2^395497390061 is an apocalyptic number.

It is an amenable number.

395497390061 is a deficient number, since it is larger than the sum of its proper divisors (1).

395497390061 is an equidigital number, since it uses as much as digits as its factorization.

395497390061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5511240, while the sum is 56.

The spelling of 395497390061 in words is "three hundred ninety-five billion, four hundred ninety-seven million, three hundred ninety thousand, sixty-one".